Miche's cartridge bottom bracket with sealed bearings is compatible with JIS Square Taper systems. The cups permit extensive adjustment of the chainline and feature a sealed bearing construction which provides durability and long lasting smoothness.

Top Features of the Miche Primato Track Bottom Bracket

68mm shell BSA cups 107mm

Miche Primato bottom bracket is maintenance free

For use with the Miche Primato track chainset

Product Data

Road:

Yes

About Bottom Brackets

Bicycle bottom brackets connect the cranks to the bike and allow the crank arms to rotate. There are various sizes of bottom bracket shell on the market, so compatibility needs to be checked. The three most common frame bottom bracket shell widths are 68mm (English threaded road and mtb), 70mm (Italian threaded road) and 73mm (British threaded mtb). There are also many axle shapes and styles, from JIS or ISO square tapers through to the round splined axles such as ISIS or Octalink and then there is the new external cup systems which have the axle built into the crank arms. Some frames are now using the new BB30 system which uses bearings pushed directly into the frame and removes the needs for cups to be threaded into the frame.

About the Miche brand

Miche ... since 1919, a passion that grows. It's been "90 years" since Ferdinando Michelin, almost on a bet, began to produce bicycles and components with facilities including some with his concept design, proceeding with his son Italo - now president of the company - and arriving now-days in the directive hands of his nephew Luigi, with a wealth of knowledge and expertize that makes Miche, one of the leading global manufacturer companies of special components for Cycles (by road, by Track and Mountain Bike), designed and produced entirely in Italy.100% Made in Italy, is for Miche, a choice motivated by a constant pursuit of absolute quality, from a story that has traveled all the roads of cycling, from the dusty ones, to those supertechnological and futuristic, constantly following a World in changing: the World of Cycling.To build its products, Miche, employs the most innovative technologies, production processes and the finest materials: carbon, light alloys and composite materials.The manufacturing of the entire range of Miche products, are performed within the factory of San Vendemmiano (Treviso - Italy) or directly controlled to have 'the hand' of what the brand MICHE will carry in the world and, while supported by robotic machines and numerical control the whole process has a decisive run by technicians who work with high professionalism, but above all with real passion for cycling, that passion that leads to refined insights concerning the evolution of each component.To validate the "functionality" and the long lasting lifetime "endurance" of the constituents, constant testings are performed within the company (with repeated testing and laboratory analysis), and directly on the road by teams of professionals in national and international competitions, because any product with the Miche label, is a "90 years" absolute quality.

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